title: Gene transfer in the evolution of parasite nucleotide biosynthesis.
mesh_terms: D000241:Adenosine / Q000378:metabolism; D000818:Animals; D001483:Base Sequence; D016785:Cryptosporidium parvum / Q000235:genetics* / Q000302:isolation & purification; D017931:DNA Primers; D030561:Databases, Nucleic Acid; D019143:Evolution, Molecular; D020224:Expressed Sequence Tags; D018014:Gene Transfer Techniques; D017125:Genes, Protozoan / Q000235:genetics*; D006790:Host-Parasite Interactions; D008954:Models, Biological; D008969:Molecular Sequence Data; D009711:Nucleotides / Q000096:biosynthesis* / Q000235:genetics; D016133:Polymerase Chain Reaction; D011687:Purines / Q000378:metabolism; D011743:Pyrimidines / Q000378:metabolism
chemical_list: D017931:DNA Primers; D009711:Nucleotides; D011687:Purines; D011743:Pyrimidines; D000241:Adenosine